Upsetting-machine



(No Model.)

W. COOKE 85 D. CARLOUGH. UPSETTING 'MAGHINE.

' No. 455,541. P55511555 July 7, 1891.

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' gww UNITED STATES PATENT OFFI E.

\VATTS COOKE AND DANIEL OARLOUGI-I, OF PATERSON, NEW JERSEY.

UPSETTlNG-MACHINE.

SPECIFICATION forming part Of Letters Patent NO. 455,541, dated July '7,1891.

V Application filed November 24, 1890- Serial No. 372,409. (No model.)

To all whom it may concern.-

Be it known that we, WVATTS COOKE and DANIEL OARLoUeH, citizens of theUnited States, both residing at Paterson, in the county of Passaic, inthe State of New Jersey, have invented a certain new and usefulImprovement in Upsetting-Machines, of which the following is aspecification.

Tie-bars used extensively in bridges, roofs, and other constructionsrequire to be of uniform section throughout except at their ends, whichrequire to be widened or thickened or both, to allow for the holes.Economy of manufacture requires that they shall be produced frompreviously-rolled bars of proper section. This is attained by heatingportions at each end and contracting those portions forcibly endwise,technically upsetting the metal. Several machines have been beforepatented by us and by others to accomplish such upsetting of the ends.

The present invention provides a die having in its side a hollow equalto the swell of the eye on one side or edge and provides another diehaving a corresponding hollow and also a strongly-supported surfacewhich applies against the end of the hot bar and through which theupsetting force is impressed. The hollows in'the two dies coin cideafter the movable die has been moved by the rain to the proper extent tocomplete the upsetting. At earlier stages the two hollows stand out ofcoincidence. In the working of the machine the hollow in the station arydie receives a quantity of the hot and soft iron at an early stage ofthe upsetting, and by means thereof serves as an abutting surface to aidin resisting the great force impressed by the ram in the act ofupsetting. We provide simple means for relaxing the lateral pressure ofthe dies to facilitate the removal of the eye after the upsetting iscompleted.

The accompanying drawings form a part of this specification andrepresent what we consider the best means of carrying out the invention.

Figure l is a side elevation. Fig. 2 is a plan view with the coverremoved. It shows the position of the parts at the commencement of theupsetting operation. Fig. 3 is a similar view showing the position afterthe completion of the upsetting operation. Flg. 4 is a verticallongitudinal section through certain portions. It is taken on the line00 m in Fig. 3.

Similar letters of reference indicate corresponding parts in all thefigures where they appear.

A A is a stouthousing or bed-casting bolted or otherwise firmly held ona suitable foundation.

A are stout uprights which aid in holding the parts to resist thestrongforce impressed by the ram.

B is the cover moved strongly up and down by any sufficient force, astoggle-levers B, properly operated. There may, if preferred, be asliding piece mounted under this cover B, as set forth in our patentdated January 10, 1888, No. 376,295; but such is not'necessary tosuccess and is not -represented.

O is a bar of iron or steel having its end portion highly heated.

D is a ram strongly reciprocated by any suiiicient force. There is aclamp (not represented) holding the bar against end movement whensubjected to the force of the ram. These parts are well known and havebeen long approved.

G and H are dies, one G being held stationary and the other H beingmoved longitudinally in the housing by the action of the ramto eiteotthe upsetting. The die G has a hollow 9 sufficient to allow the swell ofone side of the eye. The die H is correspondingly formed, with theimportant addition of a portion extending laterally across the wholewidth of the bar to act against the end of the bar and effect theupsetting. Each die G and H is provided with a hanging lip G H, which bymeeting the edge of the housing A A determines its position at the closeof the operation. The dies together fill up nearly the whole width ofthe interior of the housing and are slightlytapered. The remainder ofthe width of the interior of the housing is filled by a wedge E, havinga hanging lip E, which determines its position when it has been drivenhome and all is ready forwork. To liberate the eye after it is formedthe wedge E is driven backward by a sufiicient blow against theprotruding narrow end or by other means sufficientlyto loosen thenewlyformed eye, and, the cover having been previously lifted, theeye-bar with its properlyupset end is easily lifted out and removed.

To adjust the machine to receive a heated end of the next bar andproduce the next eye,

' die G, so that it allows only sufficient room for the die H to moveendwise easily. Now the properly-heated bar is introduced and thrust inuntil its end abuts against the lateral extension 11* of the die H. Thenthe cover B is brought strongly down into position, and the clamps (notshown) being applied to hold the body of the bar 0 against being thrustaway endwise the ram D is caused to move strongly forward. This carrieswith it the die H H* and upsets the metal of the bar 0, forcing aportion out into the hollow gin the die G and another portion into thehollow 72 in the die H. \Vhen the ram has completed its forward movementand has brought the die H I-I* into the position shown in strong linesin Fig. 3, it retreats, and, the cover being lifted and the wedge Eagain slackened, the bar with its nicely-formed eye can be easily liftedout. The round of operations may be repeated indefinitely. The dies areso formed that the eye is symmetrical and nearly or quite perfect as toits outline. It will generally require to be reduced somewhat inthickness, which may be done by rolling or hammering after its removalfrom the die. The hole in the eye is produced by punching after itsremoval from the die.

Our dies sustain the mid-length portion of the metal which is to beupset at the commencement of the upsetting operation, when it is mostlikely to buckle. At that stage the dies are in the position shown inFig. 2 and the mid-length of the metal is supported at each edge.

It cannot buckle to the right by reason of its contact withthat portionof the i die G beyond the hollow g, and it cannot buckle to the left byreason of its contact with that portion of the die II which when theupsetting is completed applies against the neck of the eye. As theupsetting proceeds these spaces open, but the widening of the metalkeeps up with the increasing space, and in practice the eyes are verycomplete.

I/Ve have the invention in active use.

We claim as our invention- 1. In an upsettingmachine, the die H, havingthe hollow h and the lateral extension H*, in combination with the dieG, having the hollow g, and means for moving one die strongly endwise,combined and adapted to serve relatively to each other and to a heatedbar introduced in the space between, substantially as herein specified.

2. In an upsetting-machine, the dies H and G, each having a hollowadapted to receive and shape a portion of the side of an eye and eachhaving a lip to determine its position at the end of the upsetting, incombina tion with each other and with a member or part 11*, adapted toact forcibly against the end of the heated bar, and means, as the ramD,for moving the parts forcibly to eitect the upsetting, ashereinspecified.

3. In an upsetting-machine, the side wedge E, arranged to act laterallyto hold and release the dies, in combination with the die H, having ahollow h, and the die G, having a hollow g, the ram D, serving tocommunicate the upsetting force, and the member 11*, serving to transmitsuch force to the hot metal, all substantially as herein specified.

In testimony that we claim the invention above set forth We al'iix oursignatures in presence of two witnesses."

' \VATTS COOKE.

DANIEL OAR'LOUGH. Vvitnesses:

JAMES M. FORTUNE, J. M. R. WILLIAMS.

